By using an n-firm Cournot model, this article examines the relationships among the number of domestic and foreign firms, the product differentiation between the domestic and foreign firms and an import tariff. It is shown that the relative number of domestic and foreign firms as well as the...

In a Cournot duopoly market, this paper studies the role of product differentiation in the resolution of the export subsidy dispute. It is shown that the optimal export subsidy decreases with the degree of product differentiation and the export subsidy will be eliminated completely when the...